CN106969632B - A kind of multiple-layer box type Hybrid Heating furnace - Google Patents
A kind of multiple-layer box type Hybrid Heating furnace Download PDFInfo
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- CN106969632B CN106969632B CN201710303031.8A CN201710303031A CN106969632B CN 106969632 B CN106969632 B CN 106969632B CN 201710303031 A CN201710303031 A CN 201710303031A CN 106969632 B CN106969632 B CN 106969632B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
- F27D2007/045—Fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of multiple-layer box type Hybrid Heating furnaces, including furnace shell, inner cavity, tablet conveyer system, resistance radiating heat system and hot air circulation to be vertically blown heating system；The inner cavity includes the first cavity and the second cavity of connection；The resistance radiating heat system is located at first cavity, the resistance radiating heat system includes multiple heating layers, the heating layer is arranged by several Resistant heating sticks and is formed, and the Resistant heating stick includes the hollow ceramic pipe being erected on first cavity two sidewalls；It includes blast pipe, reheat machine, blower and discharge pipe that the hot air circulation, which is vertically blown heating system, first cavity forms the blast pipe that the hot air circulation is vertically blown heating system, second cavity forms the discharge pipe that the hot air circulation is vertically blown heating system, the reheat machine and blower are arranged in second cavity, the hollow ceramic pipe of the Resistant heating stick is connected to the discharge pipe, has stomata on the hollow ceramic pipe.
Description
Technical field
The present invention relates to metal plates and strips hot forming techniques fields, and in particular to a kind of multiple-layer box type Hybrid Heating furnace.
Background technique
Increasingly developed with auto industry, people are also higher and higher to the energy conservation and environmental protection of automobile and security requirement.It adopts
The security performance of automobile is improved with Lightweight Technology, the fuel consumption for reducing automobile has become the necessarily choosing of China Automobile Industry
It selects.Lightweight Technology scheme first is that replaced using hot-forming high-strength steel sheet or aluminium alloy plate general steel plate manufacture vapour
Vehicle components.The thermoforming manufacturing process of high-strength steel sheet has been gradually improved, and high-strength aluminium alloy plate material drop stamping is one
The completely new forming manufacturing technology of kind, i.e. HFQ technique, its main feature is that the solution treatment of aluminium alloy is completed at the same time with stamping.
The solution treatment of high-strength aluminium alloy plate material in drop stamping technique needs for tablet to be heated to 450-550 DEG C and keeps the temperature a timing
Between, then tablet is quickly taken out out of heating furnace and is sent into stamping in mold and pressure maintaining quenching.Because aluminium alloy plate
Heating temperature is at 475 DEG C or so, the simple slow inefficiency of radiant heating method tablet temperature rise.
Heating furnace is component part important in hot forming production line, at present conventional continuous roller bottom type heating furnace and multilayer
Box resistance-heated furnace is all made of the mode of resistance wire radiant heating to heat.If added in batches with continuous roller bottom type heating furnace
Hot aluminium sheet ask that furnace body extends several times, take up a large area, at high cost；Multiple-layer box type resistance-heated furnace is equally because of heating effect
Rate can not lowly carry out batch and heat aluminium alloy plate.
Summary of the invention
The present invention provides a kind of multiple-layer box type Hybrid Heating furnaces, to solve the above problems.
In order to solve the above-mentioned technical problem, the technical scheme is that
A kind of multiple-layer box type Hybrid Heating furnace, including furnace shell, inner cavity, tablet conveyer system, resistance radiating heat system with
And hot air circulation is vertically blown heating system；The inner cavity includes the first cavity and the second cavity of connection, and the furnace shell is surround
Form first cavity and the second cavity；The tablet conveyer system is located at first cavity, the tablet conveyer system
Including multiple horizontally rolling layers, the import and export end that every layer of rolling layer is corresponded on furnace shell is provided with import and export fire door, described
Rolling layer is formed by several furnace roller parallel arrangements；The resistance radiating heat system is located at first cavity, the resistance spoke
The heating layer that heating system includes multiple horizontal directions is penetrated, the heating layer and the rolling layer are arranged in a crossed manner, the heating layer
It is formed by several Resistant heating stick parallel arrangements, the Resistant heating stick includes being erected on first cavity two sidewalls
Hollow ceramic pipe, be wrapped on the hollow ceramic pipe radiation heating wire and control it is described radiation electric-heating-wire-heating control
Device processed；It includes blast pipe, reheat machine, blower and discharge pipe that the hot air circulation, which is vertically blown heating system, and described first
Cavity forms the blast pipe that the hot air circulation is vertically blown heating system, and it is vertical that second cavity forms the hot air circulation
It is blown the discharge pipe of heating system, the reheat machine and blower are arranged in second cavity, the Resistant heating stick
Hollow ceramic pipe is connected to the discharge pipe, there is stomata on the hollow ceramic pipe, and blower is opened, and hot wind is evacuated to the from the first cavity
Two cavitys, by the reheat machine reheating, the hot gas after reheating is divided to the hollow ceramic pipe, passes through hollow pottery
Stomata on porcelain tube is vertically blown blank.
First cavity and the second cavity on-off are controlled preferably, being equipped between first cavity and the second cavity
Valve resistant to high temperature, the valve use automatic valve.
Preferably, the heat between the hollow ceramic pipe and discharge pipe by being arranged in the side wall of second cavity
Air piping connection, hot wind enter discharge pipe and are further separated into the hollow ceramic pipe by the hot air duct.
Preferably, the reheat machine is reheater.
Preferably, the furnace shell is welded by heat-resisting steel sheet and plate, inside is lined with certain thickness ceramic fiber cotton.
Preferably, the furnace roller includes solid ceramic club, the sprocket chain that solid ceramic club both ends are arranged in
Item and the driving device for driving the sprocket wheel chain movement, the solid ceramic club are erected at institute by the sprocket wheel chain at both ends
State the two sidewalls of the first cavity.
Preferably, the plane where the central axis of several furnace rollers adds with several resistance wires on vertical direction
The central axis of plane is non-coplanar where hot pin.
Preferably, the Multi-layer warming furnace successively includes heating zone and heat preservation zone along blank disengaging direction.
Compared with prior art, the present invention have it is following a little: the multiple-layer box type Hybrid Heating furnace is integrated with resistance spoke
It penetrates heating system and hot air circulation is vertically blown heating system, improve the multiple-layer box type Hybrid Heating furnace heat parts covering
Range can not only produce high-strength steel sheet in batches but also can produce high-strength aluminium alloy plate in batches, and reduce equipment investment cost.
Detailed description of the invention
Fig. 1 is the positive sectional view of the multiple-layer box type Hybrid Heating furnace of a specific embodiment of the invention；
Fig. 2 is the lateral cross-sectional view of the multiple-layer box type Hybrid Heating furnace of a specific embodiment of the invention；
Fig. 3 is the schematic diagram that the hot wind of a specific embodiment of the invention is vertically blown.
As shown in the figure: 10- furnace shell, 20- radiate heating wire, 30- solid ceramic club, 301- driving device, the hollow pottery of 40-
Fire door before porcelain tube, 401- stomata, 50- hot air duct, 60- blower, 70- reheater, 80- high temperature resistant automatic valve, 90-.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.It should be noted that attached drawing of the present invention is all made of simplified form and uses non-essence
Quasi- ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
A kind of multiple-layer box type Hybrid Heating furnace, including furnace shell 10, inner cavity, tablet conveyer system, resistance radiating heat system
And hot air circulation is vertically blown heating system；The inner cavity includes the first cavity and the second cavity of connection, the furnace shell 10
It surround and forms first cavity and the second cavity；The tablet conveyer system is located at first cavity, the tablet transmission
System includes multiple horizontally rolling layers, and the import and export end that every layer of rolling layer is corresponded on furnace shell 10 is provided with 90 He of preceding fire door
Fire door afterwards, the rolling layer are formed by several furnace roller parallel arrangements；The resistance radiating heat system is located at first cavity,
The resistance radiating heat system includes the heating layer of multiple horizontal directions, and the heating layer and the rolling layer are arranged in a crossed manner,
The heating layer is formed by several Resistant heating stick parallel arrangements, on vertical direction, where the central axis of several furnace rollers
Plane and several Resistant heating sticks where plane central axis it is non-coplanar, each Resistant heating stick includes frame
The hollow ceramic pipe 40 being located on first cavity two sidewalls, the radiation heating wire 20 being wrapped on the hollow ceramic pipe 40
And the control device that the control radiation heating wire 20 heats；It includes air inlet that the hot air circulation, which is vertically blown heating system,
Pipe, reheat machine, blower 60 and discharge pipe, first cavity form the air inlet that the hot air circulation is vertically blown heating system
Pipe, second cavity form the discharge pipe that the hot air circulation is vertically blown heating system, the reheat machine and blower 60
It is arranged in second cavity, the present embodiment, the reheat machine is reheater 70, the hollow pottery of the Resistant heating stick
Porcelain tube 40 is connected to the discharge pipe, there is stomata 401 on the hollow ceramic pipe 40, and blower 60 is opened, and hot wind is taken out from the first cavity
To the second cavity, by the reheat machine reheating, the hot gas after reheating is divided to the hollow ceramic pipe 40, passes through
Stomata 401 on hollow ceramic pipe 40 is vertically blown.The multiple-layer box type Hybrid Heating furnace is integrated with resistance radiating heat system
It is vertically blown heating system with hot air circulation, improves the multiple-layer box type Hybrid Heating furnace heat parts coverage area, it is described
Multi-layer warming furnace successively includes heating zone and heat preservation zone along blank disengaging direction.
Hot air duct between the hollow ceramic pipe 40 and discharge pipe by being arranged in the side wall of second cavity
50 connections, hot wind enter discharge pipe and are further separated into the hollow ceramic pipe 40 by the hot air duct 50.
The high temperature resistant for controlling first cavity and the second cavity on-off is equipped between first cavity and the second cavity
Automatic valve 80.
The furnace shell 10 is welded by heat-resisting steel sheet and plate, and inside is lined with certain thickness ceramic fiber cotton, for heat-insulated.
The furnace roller includes solid ceramic club 30 and the driving device for driving the solid ceramic club 30 to roll
301, the driving device 301 includes that the sprocket wheel chain at 30 both ends of solid ceramic club is arranged in and is arranged described solid
The driving mechanism of 30 one end of ceramic rod, the solid ceramic club 30 are erected at first chamber by the sprocket wheel chain at both ends
The two sidewalls of body.
When producing high-strength steel sheet, fire door 90 is opened before heating furnace, and blank enters the multilayer by charging roller tray
Box Hybrid Heating furnace, blank is rolled on the rolling layer by the tablet conveyer system, at this point, the high temperature resistant is automatic
Valve 80 is in close state, and the only described resistance radiating heat system plays heat effect, radiation heating wire 20 to blank into
Row radiant heating, when heated between reach setting value, it is rear door opened, at this time blank temperature usually 880 DEG C~930 DEG C it
Between, furnace roller sends out blank.
When producing high-strength aluminium alloy plate, fire door 90 is opened before heating furnace, and blank enters institute by feeding roller tray
Multiple-layer box type Hybrid Heating furnace is stated, blank is rolled on the rolling layer by the tablet conveyer system, at this point, the resistance to height
Warm automatic valve 80 is in the open state, and the resistance radiating heat system and hot air circulation are vertically blown heating system while rising
It to heat effect, radiates heating wire 20 and radiant heating is carried out to blank, while blower 60 starts to act on, and hot wind is evacuated to the second chamber
Body is heated again by reheater 70, and the hot gas after reheating is divided to the hollow ceramic pipe 40, passes through hollow ceramic pipe 40
On the vertical blowing blank of stomata 401, the mode of such cross-ventilation combination resistance radiant heating can quickly heat aluminium alloy
Plate, when heated between reach setting value after, rear door opened, for blank temperature usually at 470 DEG C or so, furnace roller send blank at this time
Out.
The multiple-layer box type Hybrid Heating furnace is integrated with resistance radiating heat system and hot air circulation and is vertically blown heating system
System, improves the multiple-layer box type Hybrid Heating furnace heat parts coverage area, can not only produce high-strength steel sheet in batches but also can
To produce high-strength aluminium alloy plate in batches, equipment investment cost is reduced.
Those skilled in the art can carry out various modification and variations without departing from spirit and model of the invention to invention
It encloses.In this way, if these modifications and changes of the present invention is within the scope of the claims of the present invention and its equivalent technology, then
The invention is also intended to include including these modification and variations.
Claims (5)
1. a kind of multiple-layer box type Hybrid Heating furnace, which is characterized in that add including furnace shell, inner cavity, tablet conveyer system, resistance radiation
Hot systems and hot air circulation are vertically blown heating system；The inner cavity includes the first cavity and the second cavity of connection, described
Furnace shell surround and forms first cavity and the second cavity；The tablet conveyer system is located at first cavity, the tablet
Conveyer system includes multiple horizontally rolling layers, and the import and export end that every layer of rolling layer is corresponded on furnace shell is provided with import and export furnace
Door, the rolling layer are formed by several furnace roller parallel arrangements；The resistance radiating heat system is located at first cavity, described
Resistance radiating heat system includes the heating layer of multiple horizontal directions, and the heating layer and the rolling layer are arranged in a crossed manner, described
Heating layer is formed by several Resistant heating stick parallel arrangements, and the Resistant heating stick includes being erected at first cavity two
Hollow ceramic pipe on side wall, the radiation heating wire being wrapped on the hollow ceramic pipe and the control radiation heating wire add
The control device of heat；It includes blast pipe, reheat machine, blower and discharge pipe, institute that the hot air circulation, which is vertically blown heating system,
It states the first cavity and forms the blast pipe that the hot air circulation is vertically blown heating system, second cavity forms the hot wind and follows
Ring is vertically blown the discharge pipe of heating system, and the reheat machine and blower are arranged in second cavity, and the resistance wire adds
The hollow ceramic pipe of hot pin is connected to the discharge pipe, has stomata on the hollow ceramic pipe.
2. multiple-layer box type Hybrid Heating furnace according to claim 1, which is characterized in that first cavity and the second cavity
Between be equipped with the valve for controlling first cavity and the second cavity on-off.
3. multiple-layer box type Hybrid Heating furnace according to claim 1, which is characterized in that the hollow ceramic pipe and discharge pipe
Between connected by the hot air duct that is arranged in the side wall of second cavity.
4. multiple-layer box type Hybrid Heating furnace according to claim 1, which is characterized in that the reheat machine is reheater.
5. multiple-layer box type Hybrid Heating furnace according to claim 1, which is characterized in that the Multi-layer warming furnace along blank into
Direction successively includes heating zone and heat preservation zone out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710303031.8A CN106969632B (en) | 2017-05-03 | 2017-05-03 | A kind of multiple-layer box type Hybrid Heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710303031.8A CN106969632B (en) | 2017-05-03 | 2017-05-03 | A kind of multiple-layer box type Hybrid Heating furnace |
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| Publication Number | Publication Date |
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| CN106969632A CN106969632A (en) | 2017-07-21 |
| CN106969632B true CN106969632B (en) | 2019-01-29 |
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| CN107906950B (en) * | 2017-12-28 | 2024-01-30 | 洛阳北玻轻晶石技术有限公司 | Slow cooling roller kiln for firing foamed ceramics |
| CN107940989A (en) * | 2017-12-28 | 2018-04-20 | 洛阳北玻硅巢装备技术有限公司 | A kind of foamed ceramic fires electricity consumption heated table kiln firing system and application method |
| KR101935806B1 (en) * | 2018-05-31 | 2019-01-07 | 아진산업(주) | Heating unit of multi-chamber type |
| CN109210937A (en) * | 2018-08-18 | 2019-01-15 | 京港工业炉科技(苏州)有限公司 | A kind of hot forming batch-type furnace |
| CN111072270A (en) * | 2019-04-30 | 2020-04-28 | 索奥斯(广东)玻璃技术股份有限公司 | High-efficient glass heating device |
| CN114149012B (en) * | 2021-11-03 | 2023-04-25 | 锡林郭勒热电有限责任公司 | Pyrolysis furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07190630A (en) * | 1993-12-28 | 1995-07-28 | Noritake Co Ltd | Individual roller hearth heating furnace |
| CN103667666A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous roller hearth type heat treatment furnace for plates and heat treatment method |
| CN103667668A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Plate and strip circulating heating device |
| CN105132661A (en) * | 2015-09-24 | 2015-12-09 | 上海纳铁福传动系统有限公司 | Low-temperature continuous heating furnace |
| CN205954072U (en) * | 2016-08-24 | 2017-02-15 | 南京长江工业炉科技有限公司 | Elevated type aluminium wheel hub continuous heat treatment stove |
-
2017
- 2017-05-03 CN CN201710303031.8A patent/CN106969632B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07190630A (en) * | 1993-12-28 | 1995-07-28 | Noritake Co Ltd | Individual roller hearth heating furnace |
| CN103667666A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Continuous roller hearth type heat treatment furnace for plates and heat treatment method |
| CN103667668A (en) * | 2013-11-29 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Plate and strip circulating heating device |
| CN105132661A (en) * | 2015-09-24 | 2015-12-09 | 上海纳铁福传动系统有限公司 | Low-temperature continuous heating furnace |
| CN205954072U (en) * | 2016-08-24 | 2017-02-15 | 南京长江工业炉科技有限公司 | Elevated type aluminium wheel hub continuous heat treatment stove |
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| CN106969632A (en) | 2017-07-21 |
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Denomination of invention: Multi-layer box-type hybrid heating furnace Effective date of registration: 20200102 Granted publication date: 20190129 Pledgee: Kunshan sub branch of China Everbright Bank Co., Ltd Pledgor: Suzhou Puresile Advanced Molding Technology Co. Ltd. Registration number: Y2019320010056 |